docs(core): admit S5-B1 canonical migration source & payload evidence - #581
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Reviewer's GuideThis documentation-only PR admits S5-B1 by specifying canonical source evidence, destination payload equivalence, atomic-write-temporary reconciliation, and identity-upgrade/recovery rules, then synchronizes the parent contract and ledger while leaving implementation, production authority, and S5-B3 unchanged. Sequence diagram for S5-B1 identity upgrade and quarantine recoverysequenceDiagram
participant Core
actor User
participant Journal
participant AuthenticatedStore
Core->>Core: DISCOVER
alt SOURCE_IDENTITY_UNBOUND
Core->>User: Present ambiguous source for confirmation
User-->>Core: Confirm destination identity
Core->>AuthenticatedStore: Write fresh AAD-bound envelope
else Unattended migration
Core-->>Core: Block identity upgrade
end
alt Legacy quarantine directory
Core->>Core: Assign fresh recovery-id
Core->>Journal: Persist directory-to-recovery-id mapping
Journal-->>Core: Confirm durable mapping
end
Flow diagram for S5-B1 migration evidence decisionsflowchart TD
A["Discover migration source"] --> B{"Source representation"}
B -->|"Packaged IDB fallback"| C["Freeze stored form and source_evidence_digest"]
B -->|"Filesystem or other source"| D["Open and validate source"]
C --> E["Authenticate and validate identity"]
D --> E
E --> F{"Destination payload shape"}
F -->|"Binary-native"| G["Use parsed raw bytes"]
F -->|"JSON-shaped"| H["Use canonical_json_bytes"]
G --> I["Compute source_value_digest"]
H --> I
I --> J["Compare candidates for migration disposition"]
Flow diagram for atomic-write-temporary reconciliationflowchart TD
A["Discover target and sibling temporary"] --> B{"Owner resolves?"}
B -->|"No"| C["Preserve orphan; recovery required"]
B -->|"Yes"| D{"Temporary and target comparison"}
D -->|"Equal"| E["Mark redundant; cleanup only after durable disposition"]
D -->|"Different"| F["Preserve both; block authority switch"]
D -->|"Target missing or unreadable"| G["Use temporary as migration candidate via authenticated write"]
D -->|"Both missing or unreadable"| H["Mark recovery required"]
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Documentation update correctly admits S5-B1 child contract. All cross-references updated consistently, no defects found.
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📝 WalkthroughWalkthroughThe change adds the S5-B1 migration-source evidence specification and admits S5-B1 and S5-B2 in the secure-storage contract and R-15 ledger. Production implementation and authority switching remain gated by S5-B3. ChangesS5 migration evidence admission
Estimated code review effort: 1 (Trivial) | ~5 minutes Merge Risk: 🟡 Moderate · up to This documentation-only PR admits deterministic migration evidence and recovery rules, but several required cases remain ambiguous, including binary/blob payloads, duplicate JSON members, packaged storage bytes, atomic-write recovery, and credential handling. Merge should wait for those contract clarifications to avoid inconsistent comparisons, unsafe recovery decisions, or incorrect handling of protected data. 🚥 Pre-merge checks | ✅ 5✅ Passed checks (5 passed)
Full details: Docstring CoverageExplanation No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check. Docstring coverage is scoped to functions touched by this diff. Analyzed 0 functions across 0 files. (3 skipped: 3 unsupported.) ✨ Finishing Touches🧪 Generate unit tests (beta)
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Actionable comments posted: 6
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Inline comments:
In `@docs/native/R15-SECURE-STORAGE-CONTRACT.md`:
- Line 2375: Update the S5-B1 admitted packaged-IDB evidence wording to
explicitly state both byte rules from MIGRATION-SOURCE-EVIDENCE.md: hash
canonical_json_bytes(data) for raw structured-cloned values, and the UTF-8 bytes
of the exact persisted prefixed compressed string for compressed values; remove
the ambiguous “stored structured-clone value” phrasing.
In `@docs/native/r15/MIGRATION-SOURCE-EVIDENCE.md`:
- Around line 95-101: Update the Bucket B classification and codec definitions
so non-JSON classes use exact payload-byte rules instead of
canonical_json_bytes(parsed_value): specify base64-text decoding for Global
images, archive boundaries and encrypted ZIP bytes for Library backups,
preserved directory-tree encoding for Quarantine/recovery data, and
deterministic metadata/blob boundaries for LoRA adapters, datasets, and run
metadata. Define these codecs before computing source_value_digest and keep JSON
canonicalization only for genuinely JSON-shaped classes.
- Around line 36-39: Update the canonical JSON migration guidance around
canonical_json and the required fixture to require a duplicate-detecting parse
step before materializing objects, including for JSON.parse-based uncompressed
inputs. Ensure duplicate member names are rejected before canonical_json
receives the value, rather than relying on the encoder to detect them.
- Around line 111-113: Update the Owner derivation rules for temporary files so
the class registry resolves the expected canonical path and record identity even
when the owning target file is absent, allowing crash-before-promotion
temporaries to remain candidates. Classify a prefix as orphan only when no
registered class claims it, rather than merely when no currently existing owned
record is found.
- Around line 125-129: Define the unreadable-temporary/readable-target case in
the migration evidence table as an explicit preserve-and-block outcome, or a
named typed failure with equivalent authority-blocking behavior; do not infer
authority from the readable target alone. Add a fixture covering a corrupt,
truncated, or otherwise unparseable temporary alongside a readable target.
- Line 143: Restrict the SOURCE_IDENTITY_UNBOUND identity-upgrade procedure in
docs/native/r15/MIGRATION-SOURCE-EVIDENCE.md lines 143-143 to MIGRATE_TO_R15
sources, removing CREDENTIAL_IDB_KEYSTORE_V1 from the ordinary §9 R-15 write
path unless a separate native-secret decision permits it. Align the parent
admission text in docs/native/R15-SECURE-STORAGE-CONTRACT.md lines 2165-2171
with the dedicated credential-authority disposition and define credential
recovery outside ordinary R-15 migration.
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docs/native/CORE-MIGRATION-LEDGER.mddocs/native/R15-SECURE-STORAGE-CONTRACT.mddocs/native/r15/MIGRATION-SOURCE-EVIDENCE.md
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Closes the four gaps PR #564's S5-A baseline left as explicit blockers, per issue #577: - Canonical JSON (version 1): recursive object-key sorting by exact UTF-8 byte sequence. JSON.parse's own duplicate-key resolution (last-wins) is already deterministic across engines - no separate rejection step is needed or enforceable at the encoding stage. - source_evidence_digest for the packaged-IDB-fallback representation, per compressData()'s two actual stored forms. - canonical_destination_payload_bytes, classified by real current storage shape rather than assumed: binary-native classes use raw bytes; Global images require an explicit base64-decode step (stored as base64 text despite the .png suffix); the one mixed metadata+blob class (LoRA adapters) uses a length-prefixed combined encoding; the majority JSON-shaped classes use canonical JSON; and classes with no genuine cross-authority coalescing scenario (Library backups - a single external archive; Quarantine data - a one-off recovery directory tree) need no payload-bytes rule at all. - Atomic-write-temporary reconciliation: owner derivation now resolves against the class path registry so a crash-before-first-promotion temporary (target never existed) is still a valid candidate, not an orphan; added the missing readable-target/corrupt-temporary branch as an explicit preserve-and-block outcome. - SOURCE_IDENTITY_UNBOUND upgrade path is scoped to MIGRATE_TO_R15 sources only. Credentials are explicitly excluded: their RETAIN_APPROVED_SEPARATE_PROTECTED_AUTHORITY disposition forbids folding them into the ordinary S9 write path even for identity recovery, matching the isolation rationale S5-A already established for that disposition. - Legacy quarantine recovery-id: Core assigns a fresh id at inventory time and durably records the mapping before first use. Updates the parent contract's four S5-B1 blocker locations, header status flags, and section 21 to record S5_B1_ADMITTED = YES, and the migration ledger's row 10 accordingly. S5-B3 remains the sole open child contract before S5_TERMINAL.
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User description
Summary
docs/native/r15/MIGRATION-SOURCE-EVIDENCE.mddefines: canonical JSON encoding (recursive object-key sorting, resolving the actual non-determinism in independentJSON.stringifyreconstructions);source_evidence_digestfor the packaged-IDB-fallback representation percompressData()'s two actual stored forms;canonical_destination_payload_bytesin two buckets (binary-native raw bytes vs. canonical-JSON for the majority JSON-shaped classes) derived from inspecting real current storage shape, not per-class bespoke codecs; atomic-write-temporary reconciliation; and identity-upgrade paths forSOURCE_IDENTITY_UNBOUNDsources and legacy quarantine recovery-IDs.S5_B1_ADMITTED = YES; updatesCORE-MIGRATION-LEDGER.mdrow 10 accordingly.S5_TERMINALrequires it too.Design only — no implementation, no production authority switch, no change to any S5-A/S5-B2 mechanism.
Test plan
pnpm run docs:check/pnpm run ci:prepushgreenSummary by Sourcery
Admit the S5-B1 migration evidence contract while keeping the changes design-only and leaving production authority unchanged.
New Features:
Enhancements:
Documentation:
Tests:
CodeAnt-AI Description
Admit canonical migration evidence rules and close the S5-B1 design blockers
What Changed
Impact
✅ Consistent cross-storage migration comparisons✅ Fewer unsafe temporary-file deletions✅ Safer recovery of ambiguous and quarantined data💡 Usage Guide
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